1/4(7+3r)=1/8r

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Solution for 1/4(7+3r)=1/8r equation: 


r in (-oo:+oo)

(1/4)*(3*r+7) = (1/8)*r // - (1/8)*r

(1/4)*(3*r+7)-((1/8)*r) = 0

(1/4)*(3*r+7)+(-1/8)*r = 0

1/4*(3*r+7)-r/8 = 0

(1/4*8*(3*r+7))/8-r/8 = 0

1/4*8*(3*r+7)-r = 0

5*r+14 = 0

(5*r+14)/8 = 0

(5*r+14)/8 = 0 // * 8

5*r+14 = 0

5*r+14 = 0 // - 14

5*r = -14 // : 5

r = -14/5

r = -14/5

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